On Tue, 18 May 2021 22:21:31 +0300
Max Gurtovoy <mgurtovoy@xxxxxxxxxx> wrote:
> The ->parent_module is the one that use in try_module_get. It should
> also be the one the we use in module_put during vfio_platform_open().
>
> Fixes: 32a2d71c4e808 ("vfio: platform: introduce vfio-platform-base module")
>
> Signed-off-by: Max Gurtovoy <mgurtovoy@xxxxxxxxxx>
> ---
> drivers/vfio/platform/vfio_platform_common.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
> index 361e5b57e369..470fcf7dac56 100644
> --- a/drivers/vfio/platform/vfio_platform_common.c
> +++ b/drivers/vfio/platform/vfio_platform_common.c
> @@ -291,7 +291,7 @@ static int vfio_platform_open(struct vfio_device *core_vdev)
> vfio_platform_regions_cleanup(vdev);
> err_reg:
> mutex_unlock(&driver_lock);
> - module_put(THIS_MODULE);
> + module_put(vdev->parent_module);
> return ret;
> }
>
The series looks good to me. This one is an obvious fix, so I'll queue
that for v5.13 and save the latter two for the v5.14 merge window.
Please do make use of cover letters in the future. Thanks,
Alex
